I had a 5kw heater before this one that broke down. The 3KW downgrade is sufficient for living comfy in a van.
The only thing I miss is from that one is the control screen, were you could have a clock as the deafult display.
The menu settings could do with some improvements, but there is a ton of youtube videos to guide through the mess.
After the initial setup tho, who cares? All I do is press the button on and off every now and then. Happy days.
I would happily pay a few extra kronor to include some kind of sound dampner on the fuelpump. The ticking noise drove me crazy the first night and I had to find a McGuiver solution with some rubber, ducktape and backpain.. I can still hear it at night, but it good enough.